Treating artificial fabrics



Patented Apr. 16, 1940 PATENT OFFICE mmmc ARTIFICIAL memes Karl Brodersen, Matthias Quaedvlieg, and Max Zabel, Dessau in Anhalt, and Albert Schneider, lfl l, Germany, assimors to I. G. Fan-benindustrie Aktiengesellschaft, Frankfort-on-the- Main, Germany No Drawing. Application March 4, 1938, Serial No. 193,924. In Germany March 9, 1937 y 12 Claims.

The present invention relates to an improvement in the treatment of textiles of various kinds, especially artificial fibers of all kinds.

For treating textiles, for instance, for softening the different artificial fibers, preferably high molecular bases are used such as, for instance, stearyl amine, oleyl amine or dodecyl amine as well as the guanides derived from these bases and furthermore acylated alkylene diamines containing the radicle of a higher fatty acid such as, for instance, stearoylaminomethylene dimethylamine, imidazole derivatives of the said amines and similar compounds. The use of these compounds embraces the disadvantage that they form insoluble precipitates with sulfate and phosphate ions present as well in the usual water supplies as in the softened waters. In this connection similar disadvantages occur as in the use of the usual soaps in lime containing 50 waters.

Now, we have found that the formation of precipitates in baths for treating textiles, may be completely hindered when using the high molecular bases and their derivatives mentioned above, together with dispersing agents being free from acid groups. It is known that with the aid of these dispersing agents the formation of precipitations of lime soaps may be hindered; the highly dispersed lime soaps formed in this 3o manner, however, do not act as a soap.

I 40 primary the water-soluble polyglycolor polyglycerine ether and ester of the higher fatty alcohols or highly alkylated phenols (dodecyl phenol) or of the higher fatty acids respectively, may be used. These ethers and esters of polyglycols and polyglycerines shall contain an aliphatic radicle of at least 10 carbon .atoms.

Especially valuable softening agents are obtained by mixing higher alkyl biguanides and their salts with esters of soap-forming fatty acids containing hydroxy groups. Compounds of this constitution are known to have a softening effeet on textiles. They may be saturated or unsaturated compounds and may contain straightlined or branched carbon chains and, the case given, may be substituted. There may be mentioned, for instance, glycol and polyglycol ester effect on textile materials, for instance, 0.1 gram of stearyl biguanide hydrochloride per liter of the treating bath and of stearic acid polyglycol ester even 2 grams per liter are necessitated, the same softening effect is obtained when using 0.10 gram per liter of a mixture consisting of equal parts of both these components. By a suitable choice and proportion of the components in the mixture the kind of improvement of the different textiles consisting of animal or vegetable fibers, artificial fibers such as viscose silk, copper silk and the various acetate silks, and mixed fabrics of these fibers may be modified with respect to smoothness and feel.

The following examples serve to illustrate our invention, the parts being by weight:

Example 1.-50 parts of stearyl biguanide hydrochloride and 25 parts of dispersing agent consisting of oleyl alcohol polyglycol ether as obtainable according to Example 4 of German Patent No. 605,973 are stirred together with 25 parts of water. The paste thus obtained is a very effective softening agent for artificial silk.- The feel of fabrics treated in a bath containing 0.2 gram per liter of this mixture is thereby rendered soft and full. This preparation may be used as well in condensed water as in water containing sulfate ions.

Similar effects are obtained with the aid of preparations having the following composition:

2 parts of stearylformoguanamine and p 1 part of oleylpolyglycol ether, or

Example 2.50 parts of stearyl biguanide chlorhydrate and 50 parts of the reaction prod uct of one molecular proportion of stearic acid with 6 mol of ethylene oxide, are melted together. When treating viscose silk containing 0.05 gram per liter of this mixture there is obtained a soft, full feel. The preparation does not become ineffective in the presence of sulfate ions, acids or alkalies.

When substituting the stearic acid polyglycol ester by stearic acid polyglyceride a softening agent is obtained which has the same good properties. i

The esters mentioned above, likewise may be partly substituted by mono esters of higher fatty.

acids with polyvalent alcohols, ether alcohols and dior triethanolamine as well as by the hydroxyethylated derivatives of these compounds.

stearyl biguanide hydrochloride, likewise, may be used together with mixtures of the said compounds and in this manner it becomes possible to modify the feel of the fabric. A very effective mixture consists of 33 parts of stearyl biguanide hydrochloride, 33 parts of stearic acid polyglyceride and 33 parts of the polyglycol ethers of the stearic acid triethanolamine ester.

Example 3.1 part of stearyl biguanide hydrochloride, 1v part ofoleylpolyglycol ether and 2 parts of a triethanolamine stearic acid ester, after-treated with ethylene oxide, are melted together. Viscose silk treated in a bath containing per liter 0.05 gram to 0.1 gram of this prepar'aftion acquires a soft and full feel.

Similar effects are obtained with the aid of preparations having the following composition:

Parts stearyl biguanide hydrochloride 1 Oleylpolyglycol ether 1 Stearic acid ester of triethanolamine 2 Stearyl biguanide hydrochloride 12.5- Stearic acid polyglycol ester 1.25

A 30 per cent. solution of sodium oleylsarkoside 2 What we claim is:

1. The process for improving textile fabrics which comprises treating them in a bath containing a high molecular base and a dispersing agent of the groups consisting of ethers and esters free from acid groups and containing an aliphatic radicle of at least 10 carbon atoms.

2. The process for improving textile fabrics which comprises treating them in a bath containing a high molecular base and a dispersing agent of the group consisting of ethers and esters free from acid groups, and containing an aliphatic radicle of at least 10 carbon atoms in the presence of an ester of a soap-forming fatty acid containing hydroxy groups.

3. The process for improving textile fabrics which comprises treating them in a bath containing a biguanide of a high molecular base and a dispersing agent of the group consisting of ethers and esters free from acid groups, and containing an aliphatic radicle of at least 10 carbon atoms.

4. The process for improving textile fabrics which comprises treating them in a bath containing a high molecular base and a dispersing agent of the group consisting of ethers and esters free from acid groups containing a hydroxypolyether radicle and an aliphatic radicle of at least 10 carbon atoms.

5. The process for improving textile fabrics which. comprises treating them in a bath containing a salt of stearyl biguanidine and a dispersing agent of the group consisting of ethers and esters free from acid groups containing a hydroxypolyether radicle and an aliphatic radicle of at least 10 carbon atoms.

6. The process for improving textile fabrics which comprises treating them in a bath containing a salt of stearyl biguanidine and oleylpolyglycolether.

7. The process for improving textile fabrics which comprises treating them in a bath containing a salt of stearyl biguanidine and polyglycolstearicacidester.

8. The process for improving textile fabrics which comprises treating them in a bath containing a biguanide of a high molecular base and a dispersing agent of the group consisting of ethers and esters free from acid groups and containing an aliphatic radicle of at least 10 carbon atoms in the presence of an ester of a soap-forming fatty acid containing hydroxy groups.

9. The process for improving textile fabrics which comprises treating them in a bath containing a high molecular base and a dispersing agent of the group consisting of ethers and esters free from acid groups containing a hydroxypolyether radicle and an aliphatic radicleof at least 10 carbon atoms in the presence of an ester of a soap-forming fatty acid containing hydroxy groups.

10. The process for improving textile fabrics which comprises treating them in a bath containing a salt of stearyl biguanidine and a dispersing agent of the group consisting of ethers and esters free from acid groups containing a hydroxypolyether radicle and an aliphatic radicle of at least 10 carbon atoms in the presence of an ester of a soap-forming fatty acid containing hydroxy KARL BRODERSEN. MA'I'I'HIAS QUAEDVLIEG. MAX ZABEL.

ALBERT SCHNEIDER. 

